Jeffrey McAllister was arrested for investigation of two counts of first-degree rape, four counts of first-degree sodomy and multiple counts of sex abuse.

The alleged assaults involved three patients in private rooms in the emergency room area between September 2012 and April 2013, The Oregonian reported.

Legacy personnel say McAllister was fired in April.

Hospital spokeswoman Amber Shoebridge said the hospital was cooperating with police.

McAllister was held on $2.26 million bail, with a Circuit Court appearance scheduled Thursday.

“We’re definitely very concerned there may be more victims,” said police Sgt. Pete Simpson. “There might be more women out there who might have been afraid to report it. The victims he chose were people who maybe wouldn’t be the most believable perhaps because of their lifestyle or addiction issues.”

McAllister worked at Legacy as an emergency room technician from 2005 to 2008 and as a registered nurse in the emergency room from 2008 to 2013, police said.

The investigation began after a patient reported that a nurse had inappropriate sexual contact with her in a private room in the emergency area in April.